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WITNESSES:

' Sheets-Sheet I. T. R. ALMOND.

ROTARY STEAM ENGINE- Patented Mar. 18, 1890.

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T". R. ALMOND.

ROTARY STEAM ENGINE. No. 423,585. Patented Mar. 18, 1890.

@ WITNESSES: INVENTOR Mm @W ATTORNEYS.

UNITED STATES PATENT OFFICE.

THOMAS R. ALMOND, OF NEW YORK, N. Y.

ROTARY STEAM-ENGINE.

SPECIFICATION forming part of Letters I Patent No. 423,585, dated March 18, 1890.

Application filed-Tune 15, 1889. Serial No. 314,411. (No model.)

To all whom it may concern:

Be it known that I, THOMAS R. ALMOND, of the city of New York, county and State of New York, have invented certain new and useful Improvements in Rotary Steam-Engines, of which the following is a specification.

This invention relates to sundry improvements on rotary engines, and more especially the rotary engine which is described in an application for Letters Patent of the United States filed by me on March 12, 1889," Serial The invention consists, principally, in the new details of improvement and combinations of .parts that are hereinafter more fully specified.

In the accompanying drawings, Figure 1 represents a side elevation of a rotary engine containing my present invention. Fig. 2 is a vertical longitudinal central section of the same. Fig. 3 is a cross-section on the'line 70 In, Fig. 2. Fig. 4 is a cross-section on the line k k, Fig. 2. Fig. 5 is a detail side view of the disk for adjusting the cylinder-head. Fig. 6 is a cross-section on the plane of the line at c, Fig. 2, the eccentric being in the depressed position; and Fig. 7 is a cross-section, on an enlarged scale, taken on theplane of the line 0" c", Fig. 1. Fig.8 is across-section on line or m, Fig. 2. i

' In the drawings, the letter A represents the main shaft of my engine. B and O are the two cylinders thereof. Of course more than two cylinders may be used, or one only, if desired. Each of these cylinders has a fixed or immovable cylinder-head D, and each also has a movable cylinder-head E. Within each cylinder B O the shaft. A carriesan eccentric H, which is surrounded by a perforated ring I, substantially in the same manner as de scribed in my aforesaid application. The ringI carries an abutment J, which passes into a well I) through a swivel-block L, all as described in said application.

F is the shaft, to be driven by the main shaft A. It is aligned therewith, as shown in Fig. 2.

The firstcylinder B, when two are used together, exhausts its steam through a pipe M into the next cylinder 0. \Vithin each cyl= inder the steam acts upon the ring I, eccentric H, and abutment J, in the manner substan= tially as described in my above-referred-to application, Serial No. 302,986.

For the purpose of adjusting the movable" cylinder-head E in each cylinder, I interpose between said cylinder-head E and the nearest stationary cylinder-head D a ring G, which surrounds the shaft A loosely, and which has an annular projection cl of a tapering form that is to say, the said projection extends farthest from the face of the disk G at one part of its circumference and then gradually tapers down, so as to gradually approach the face of said disk G, as is indicated by full lines in Fig. 5, and by dotted lines in Fig. 2. The edge of the disk G has teeth that mesh into a pinion c, which can be. turned by a hand-wheel f. The tapering annular projection d of the disk G extends into a tapering annular recess or groove d in the movable cylinder-head E. -It follows that by turning the hand-wheel f and pinion e the" disk G will be turned and with it the tapering annular projection cl, thereby advancing the cylinder-head E gradually, as may from time to time be necessary. I find that this mechanism for adjusting the cylinder'head, while of very simple construction, is in all respects effective and reliable and enables an ordinary operator to apply the necessary power to the pinion e without difficulty.

For lubricating the shaft A where it ex tends beyond each cylinder B O, I provide each of said cylinders with a chamber N, above the shaft A, which chamber Nis of such size as to carry a considerable quantity of cotton Waste or other fibrous matter N and hold same in contact with the upper side of said shaft. The lubricating substance to be used can be poured into each chamber N through an opening in the top thereof, which opening is tightly closed by a plug g. When the'cotton waste or other fibrous carrier of the lubricant is thoroughly charged, the machine is .movement of theshaft the eccentric 1-1 and ring I can be adjusted within the cylinder. For the above purpose I make thebearin gs A at the sldes of the cylinders, and which connect with the boxes N, movable vertically or in any other direction. of adjusting screws a that pass through threaded lugs 19? on the cylinders (see Fig. 2)

and that come against the bearings A as indicated. The bearings A may be held against the cylinders by screws a, as shown; but the means for adjusting and holding the bearings A may be varied when desired.

The invention has reference also to the manner of feeding one of the cylinders with steam and of causing the steam from one cylinder to feed the other. I have represented the two cylinders B O in the drawings. "The cylinder B, which is the main cylinder of the double engine, may receive its steam direct from an inlet-pipe n and discharge it through an outlet-pipe M. The pipe M is the inlet-pipe for the next cylinder 0. The cylinder B is the smallest cylinder in capacity of the series and forms a gage for the quantity of steam which shall pass into the series of cylinders during each revolution of the shaft. By this means the cylinder B acts as a valve for regulating the amount of steam that shall enter the other cylinders. In the cylinder B a valve-mechanism may be employed so as to cut off the amount of steam entering said cylinder when desired to have expansion take place in said cylinder. When the cylinder B is permitted to be filled with steam, the expansion of the steam only takes place in the next larger cylinder; but when the valves are used in the cylinder B and only a certain amount of steam admitted it s or may be permitted to expand in said cylinder before reaching the next cylinder. I have represented in the annexed drawings one valve mechanism for regulating the admlssion of steam to the cylinder B, and in That side of the chamber This I accomplish by meansv said drawings the swiveled block L is made a recess at r, which, after the lowermost position of the abutment J has been attained, will, as soon as said abutment inclines its lower end to the right, communicate with the inlet 0 and with the steam-chamber of the cylinder. The extent of the notch r or recess of the swivel-block L is suchthat steam is shut off from the steam-chamber of the cylinder at the desired time. The notch 0 may be made larger or smaller, as desired, for the purpose of using the steam more or less or not at all expansively. On the opposite side of the abutment the block L has a recess 5, which isalways in communication with the outlet 19. This valve arrangement, though useful in connection with two cylinders or in any number of cylinders that may be used in the series, is also in many cases useful in engines having but a single cylinder, and I do not de sire to limit the use of this valve arrangement to the connection with any particularnumber of cylinders; but any other desired valve arrangement may be used to efiect the "same results. For the purpose of rigidly connecting the two cylinders B C, so that but little heat will pass from B to O, I" connect them by as little metal bracing R as possible.

Having now described my invention, what I claim is v 1. The combination of the fixed cylinderhead D with the movable cylinder-head E,

having annular tapering groove (1 and with the interposed ring G, having annular tapering projection d, entering said groove, and with means, substantially as described, for revolving the disk G, as specified.

2. The combination of the shaft A. and

. steam-cylinder B with the lubricating-cham-V ber N, located above said shaft and incommunication at one end with the steam-cham- 'I oo ber thereof, but having its other end sealed VVit-nesses:

HARRY M. TURK, T. F. BOURNE-Y THOMAS R. ALMOND. I 

